3results about How to "Realize Nanoization" patented technology

The invention discloses a device and a method for generating nano-bubble fuel oil by utilizing oleophobic fibers and a Venturi flow field. The device comprises a Venturi tube, a nano-bubble generation reactor and a large bubble separator, the nano bubble generation reactor is filled with an oleophobic fiber module; the method comprises the steps that fuel oil flows through a Venturi tube to generate negative pressure to form liquid of pre-dissolved gas, the liquid enters a nano bubble generation reactor and flows through an oleophobic fiber module, micro-nano bubbles with large particle sizes are separated and discharged through an exhaust port in a large bubble separator, nano bubbles with small particle sizes stably exist in the liquid, and the micro-nano bubbles with small particle sizes stably exist in the liquid. The nanometer bubble fuel oil is obtained. The whole device system does not need high-energy-consumption equipment such as an external air pump and pressurized dissolved air, the structure is compact, the energy consumption is low, liquid of pre-dissolved air is formed only through negative pressure self-suction, and finally the liquid with the high concentration of D50lt is obtained; and therefore, the combustion efficiency can be remarkably improved, and pollutant emission can be reduced.

The invention belongs to the technical field of food fresh-keeping materials, and particularly relates to an aerogel type composite fresh-keeping pad as well as a preparation method and application thereof. The preparation method of the aerogel type composite fresh-keeping pad comprises the following steps: S1, mixing polyethylene glycol, oxalic acid and polyacrylic acid, and stirring at 70-80 DEG C to obtain a eutectic solvent; the method comprises the following steps: mixing a biomass raw material with a deep eutectic solvent, extracting, and filtering to obtain solid residues; s2, mixing the obtained solid residues with water, performing high-pressure homogenization treatment, mixing the obtained cellulose-containing suspension with a gelatin solution and a cross-linking agent, pouring the obtained mixed solution into a forming mold, performing freeze-drying treatment, and taking out to obtain the aerogel type composite fresh-keeping pad. The aerogel type composite fresh-keeping pad prepared by the method disclosed by the invention has good mechanical property, water absorption and antibacterial activity, and shows an excellent fresh-keeping effect in fresh-keeping of fish slices.

The invention relates to the technical field of propane catalytic oxidation, in particular to a silicon-based heterojunction material and a preparation method and application thereof based on mechanical force, the preparation method comprises the following steps: mixing copper oxide, silicon powder, titanium dioxide and water, grinding, and freeze-drying to obtain ground powder; and calcining the ground powder in a protective atmosphere to obtain the silicon-based heterojunction material. According to the invention, the silicon-mediated CuO-TiO2 nano heterojunction is constructed through a mechanical force assembly strategy. And nanocrystallization, uniform mixing and interface engineering of CuO and TiO2 are synchronously realized under the action of liquid phase shearing. In the process, the silicon powder not only serves as a doping agent, but also serves as a solid reducing agent, and selectively reduces Cu < 2 + > on the surface into Cu < + > under the driving of shearing force, so that an active structure with a Cu < + > / Cu < 2 + > redox cycle is constructed in situ, lattice distortion is induced, a large number of oxygen vacancies are generated, and the migration and activation capacity of oxygen is improved.